16407778704 has 40 divisors (see below), whose sum is σ = 43754080512. Its totient is φ = 5292831360.

The previous prime is 16407778703. The next prime is 16407778727. The reversal of 16407778704 is 40787770461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16407778703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5511879 + ... + 5514854.

Almost surely, 2^16407778704 is an apocalyptic number.

It is an amenable number.

16407778704 is an abundant number, since it is smaller than the sum of its proper divisors (27346301808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16407778704 is a wasteful number, since it uses less digits than its factorization.

16407778704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026775 (or 11026769 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 51.

The spelling of 16407778704 in words is "sixteen billion, four hundred seven million, seven hundred seventy-eight thousand, seven hundred four".